The intention of this series is to enable uSD support for Cubieboard7 based on Actions S700 SoC, and on the way we found that it requires changes in dmaengine present on S700 as its different from what is present on S900. Patch(1/8) does provide a new way to describe DMA descriptor, idea is to remove the bit-fields as its less maintainable. It is only build tested and it would be great if this can be tested on S900 based hardware. Patch(2/8) adds S700 DMA engine support, there is new compatible string added for it, which means a changed bindings needed to submitted for this. I would plan to send it later the converted "owl-dma.yaml". Patch(4/8) disables the sps node as its memory range is conflicting pinctrl node and results in pinctrl proble failure. Rest of patches in the series adds DMA/MMC nodes for S700 alone with binding constants and enables the uSD for Cubieboard7. This whole series is tested, by building/compiling Kernel on Cubieboard7-lite which was *almost* successful (OOM kicked in, while Linking due to less RAM present on hardware). Following is the mmc speed : ubuntu@ubuntu:~$ sudo hdparm -tT /dev/mmcblk0 /dev/mmcblk0: Timing cached reads: 1310 MB in 2.00 seconds = 655.15 MB/sec Timing buffered disk reads: 62 MB in 3.05 seconds = 20.30 MB/sec Amit Singh Tomar (8): dmaengine: Actions: get rid of bit fields from dma descriptor dmaengine: Actions: Add support for S700 DMA engine clk: actions: Add MMC clock-register reset bits arm64: dts: actions: disable sps node from S700 arm64: dts: actions: Add DMA Controller for S700 dt-bindings: reset: s700: Add binding constants for mmc arm64: dts: actions: Add MMC controller support for S700 arm64: dts: actions: Add uSD support for Cubieboard7 arch/arm64/boot/dts/actions/s700-cubieboard7.dts | 41 ++++++ arch/arm64/boot/dts/actions/s700.dtsi | 48 +++++++ drivers/clk/actions/owl-s700.c | 3 + drivers/dma/owl-dma.c | 166 +++++++++++++---------- include/dt-bindings/reset/actions,s700-reset.h | 3 + 5 files changed, 193 insertions(+), 68 deletions(-) -- 2.7.4 _______________________________________________ linux-actions mailing list linux-actions@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-actions
